CN212310263U

CN212310263U - Water-saving cleaning device

Info

Publication number: CN212310263U
Application number: CN202020728633.5U
Authority: CN
Inventors: 黄信航
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-01-08
Anticipated expiration: 2030-05-07

Abstract

A water-saving cleaning device for horizontal wet process equipment comprises at least one tank chamber, each tank chamber comprises an operation tank and an equipment tank, the two tank chambers are independent from each other and are provided with communicated through holes, the equipment tank is provided with a filtering unit, the operation tank is provided with a cleaning unit, a pump is provided with a water inlet pipe connected with the filtering unit, a water outlet pipe is connected with the cleaning unit, cleaning water is pumped out from the equipment tank by the pump and is sent to the operation tank for cleaning a circuit board, wherein the filtering unit is sequentially provided with a shell, a filtering basket, a filtering bag and a ballast from the periphery to the center, the ballast is composed of a pressing plate and a caisson arranged downwards, the pressing plate is provided with a plurality of water inlet holes, the water inlet holes are distributed in the peripheral area of the position where the caisson is combined with the pressing plate, the filtering bag is positioned between the caisson and the filtering basket after assembly, the cleaning water enters the, therefore, the caisson occupies the space in the filtering basket, the using amount of cleaning water is reduced, the replacement rate of the cleaning water is improved, and the purposes of saving water and energy are achieved.

Description

Water-saving cleaning device

Technical Field

The utility model relates to a belt cleaning device's technical field for among printed circuit board's the cleaning equipment, especially indicate a design of sparingly wasing water usage by a wide margin.

Background

In the horizontal wet process equipment used in the printed circuit board industry, a plurality of horizontal groove chambers are arranged side by side in sequence, the plurality of groove chambers can be divided into a chemical groove chamber, a water washing groove chamber, a cold air blow-drying groove chamber, a hot air blow-drying groove chamber and the like according to different functions, and the number, the position and the sequence of the groove chambers are set according to the required process requirements. The washing tank chambers are used for cleaning the printed circuit board horizontally arranged, and each washing tank chamber comprises an operation tank and an equipment tank. The adjacent operation slots can be communicated with each other for the printed circuit board to enter in a horizontal mode. The equipment tank is an arrangement area of cleaning water, pipelines and pumps and is used for supplying cleaning water required in the process to the operation tank. The cleaning water is generally soft water or pure water, and during the cleaning process, clean cleaning water is continuously supplied to the equipment tank, and dirty cleaning water in the equipment tank flows out in an overflow manner to achieve the replacement of the cleaning water, and a certain frequency of the replacement of the cleaning water must be maintained during the process to ensure the cleaning effect of the circuit board. The largest amount of washing water is used in the washing tank chamber, and the reduction of the amount of washing water is cost reduction, but in the conventional structure, the space of an operation tank and an equipment tank is large, and is generally 35 liters; the amount of washing water used was large, and it took 8.7 minutes for each replacement of washing water, and the amount of washing water to be supplemented was generally 4 liters/minute. What is needed is a device that can reduce the amount of cleaning water used and improve the cleaning effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a water conservation belt cleaning device mainly improves filter unit, groove room volume and groove room structure, borrows this to reduce the use amount of wasing water, increases the replacement frequency of wasing water, reaches the purpose of water conservation and energy saving, also promotes circuit board's cleaning performance simultaneously.

To achieve the above object, the present invention provides a water-saving cleaning device, comprising at least one tank chamber, each tank chamber comprises an operation tank and an equipment tank, the two tank chambers are independent from each other and are provided with communicating through holes, a filtering unit is arranged in the equipment tank, a cleaning unit is arranged in the operation tank, a pump is provided with a water inlet pipe connected to the filtering unit, a water outlet pipe connected to the cleaning unit, cleaning water in the equipment tank is pumped out by the pump and then sent to the operation tank to clean a circuit board, wherein the filter unit is equipped with casing, filtration basket, filter bag and ballast according to the preface by periphery to center, and the ballast comprises clamp plate and the caisson that sets up downwards, has a plurality of inlet openings on the clamp plate, and the inlet opening distributes and combines in the peripheral region of clamp plate position in the caisson, and the filter bag lies in between caisson and the filtration basket after the equipment, and washing water is flowed to the caisson periphery by the inlet opening inflow, later through filter bag, filter basket and again by the delivery port of casing bottom outflow.

Furthermore, the utility model relates to a water conservation belt cleaning device's water conservation structure, including an at least groove room, every groove room includes operation groove and equipment groove, be separated by the space bar between operation groove and the equipment groove, make two groove spaces independent each other but be equipped with the through-hole of intercommunication, the equipment inslot is equipped with filter unit, be equipped with cleaning unit in the operation groove, a pumping is equipped with and advances water piping connection in filter unit, it goes out water piping connection in cleaning unit to be equipped with, the washing water of equipment inslot is taken out by the pumping and is sent to the operation inslot again and wash the circuit board, wherein the bottom of operation groove comprises swash plate and bed hedgehopping bottom plate, the swash plate is a slope angle form and is located bed hedgehopping bottom plate one side, the top surface of the adjacent bed hedgehopping bottom plate of swash plate highest position, the lowest position corresponds to the through-hole, the through.

In the preferred embodiment of the present invention, the housing has two opposite slots at the top, and the pressing plate also has two protruding tenons, which can be rotated to engage with the slots to fix the position of the housing and the ballast.

In a preferred embodiment of the present invention, the cross-sectional area of the water inlet hole is not more than 2 square centimeters.

The utility model discloses a preferred embodiment, constitute by swash plate and bed hedgehopping bottom plate in the bottom structure of operation groove, the bed hedgehopping bottom plate adopts the mode of elevating to set up and reduces operation inslot volume, and does not influence the function of cleaning unit, and the swash plate inclines an angle form and is located bed hedgehopping bottom plate one side, and the top surface of the top position neighbouring bed hedgehopping bottom plate, the extreme low position is corresponding to the through-hole.

In a preferred embodiment of the present invention, the raised floor top surface is sloped downwardly away from the equipment slot.

In the preferred embodiment of the present invention, the top surface of the raised bottom plate is inclined downward toward the direction of connection with the sloping plate.

It is above to synthesize, the utility model relates to a water conservation belt cleaning device has several following advantages:

1. the utility model discloses the caisson design of addding in the filter unit utilizes the caisson to occupy inside volume, borrows this and reduces bucket groove capacity, increases the replacement frequency of wasing water relatively, reaches the purpose that water conservation and energy saving just promoted the filter effect.

2. Because the annular water inlet hole on the inner pressing plate of the filtering unit can avoid the vortex generated between the water surface and the water inlet hole when the pumping operates, and the vortex can cause the pumping to suck air, thereby causing the abnormal problem of the pumping.

3. The volume of the operation groove can be reduced due to the design of raising the bottom plate, and the effects of water and energy saving are achieved.

4. Bed hedgehopping bottom plate and swash plate, both have the design of slope, can let the washing water flow back to the equipment inslot fast, when avoiding initial operation, arouse the alarm because of the temporary water level reduction in the equipment inslot, cause the puzzlement of operator on operating device.

5. The through hole communicated between the operation tank and the equipment tank is positioned at a non-intermediate position and is matched with water flow with higher flowing speed guided by the inclined plate to enable cleaning water to enter the equipment tank from the through hole to generate an annular flow state, so that relatively clean cleaning water overflowing from the front tank can be mixed with relatively dirty cleaning water from the bottom of the operation tank and then enter the filter tank to be filtered, relatively clean cleaning water is output to the cleaning unit, and in addition, the annular flow state is also favorable for the dirty cleaning water to be smoothly discharged from the overflow pipe, so that the cleanness degree of the cleaning water can be ensured under the condition of high replacement rate.

Drawings

Fig. 1 is a perspective view of the water-saving cleaning device of the present invention.

Fig. 2 is a side view of the internal structure of the water-saving washing device of the present invention.

Fig. 3 is a perspective view of the filtering unit in the water-saving cleaning device of the present invention.

Fig. 4 is an exploded view of the filter unit of the water saving cleaning device of the present invention.

Fig. 5 is a cross-sectional view of the AA surface of fig. 3 and a schematic flow direction of the washing water.

Fig. 6 is a perspective view of the internal structure of the water-saving washing device of the present invention.

Fig. 7 is a perspective view showing the internal structure of the removal washing unit in the water-saving washing apparatus of the present invention.

Fig. 8 is a perspective view showing the direction of the washing water flow when the water-saving washing apparatus of the present invention is operated.

Fig. 9 is a schematic diagram illustrating the flow direction and water level of the cleaning water during operation of the water saving cleaning apparatus of the present invention.

Description of reference numerals:

1-a chamber; 11-operating the tank; 12-equipment tank; 13-a through hole; 3-a cleaning unit; 4-a filtration unit; 41-a housing; 411-water outlet; 412-card slot; 42-a filter basket; 421-mesh; 43-a filter bag; 431-flange; 44-ballast; 441-a pressing plate; 442-caisson; 443-a water inlet hole; 444-a grip; 445-latch; 5-pumping; 51-a water inlet pipe; 52-water outlet pipe; 1A, 1B, 1C-cell chamber; 11A, 11B, 11C-operating slot; 12A, 12B, 12C-equipment slots; 14-a partition plate; 141-overflow port 141; 15-a partition plate; 151-overflow port; 16-a water injection pipe; 17-an overflow pipe; 18-circuit board access; 19-circuit board outlet; 101-a sloping plate; 102-a raised floor; 6-a partition plate; 7-cyclic flow regime; a-water line; b-water line.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a perspective view of the water saving washing device of the present invention, and fig. 2 is a side view of the internal structure of fig. 1 with a part of the wall panel removed. The utility model discloses water conservation belt cleaning device includes an at least groove room 1, and every groove room 1 includes operation groove 11 and equipment groove 12, and two grooves are independent nevertheless to be equipped with the through-hole 13 of intercommunication each other in space, but make the washing water in the operation groove 11 flow back to in the equipment groove 12. The operation tank 11 is provided with a cleaning unit 3 for horizontally feeding the circuit board to perform the cleaning process operation. The cleaning unit 3 can be an immersion cleaning mechanism or a spray cleaning mechanism according to the process requirement, and since both are conventional structures, only one of them is shown in the figure, so it will not be described in detail. The equipment tank 12 is provided with a filter unit 4 and associated liquid supply lines for supplying clean cleaning water, which in this embodiment is soft or pure water. A pump 5 is arranged below the tank chamber 1. The pump 5 is provided with a water inlet pipe 51 connected to the bottom of the filter unit 4 and a water outlet pipe 52 connected to the cleaning unit 3. The pump 5 is responsible for pumping out the cleaning water in the equipment tank 12 to the cleaning unit 3 in the operation tank 11, the circuit board is cleaned by the cleaning unit 3, and the cleaned cleaning water flows back to the equipment tank 12 through the through hole 13.

The above description is the basic structure and operation mode of the chamber 1, and the various water saving designs of the present invention will be described in sequence.

The filtering unit 4 is installed at the bottom of the facility tank 12 and filters the washing water. The first water-saving design of the utility model is to reduce the usage amount of cleaning water in the filtering unit 4. As shown in fig. 3 and 4, the filter unit 4 includes a housing 41, a filter basket 42, a filter bag 43, and a ballast 44 in this order from the periphery to the center. The housing 41 is mounted to the bottom of the equipment tank 12 (as shown in fig. 1 and 2) in use, and the bottom of the housing 41 has a water outlet 411 (as shown in fig. 5). The outlet 411 is connected to the water inlet pipe 51. In addition, the housing 41 has two opposite positions at the top thereof with slots 412, and the slots 412 are L-shaped. The filter basket 42 is a cylinder with an upward opening and is surrounded by a plurality of meshes 421. The filter bag 43 is a bag-shaped filter material through which cleaning water can pass, and the material of the filter bag can be cotton, non-woven fabric or various filter cloths. The filter bag 43 has a flange 431 at the top for being clamped when installed. The ballast 44 is composed of a pressing plate 441 and a downward-facing sinkThe tank 442 is formed in a hollow cylindrical shape in this embodiment. The pressing plate 441 has a plurality of water inlet holes 443, and the water inlet holes 443 are annularly arranged and distributed in a peripheral region where the caisson 442 is combined with the pressing plate 441. In order to avoid the generation of vortex when water is fed, the water inlet 443 is a small hole with a cross-sectional area not more than 2 square centimeters (cm)²). The pressing plate 441 is provided with two tenons 445 protruding outward from each other in addition to a handle 444 for rotation by force, and the tenons 445 can be pressed downward to enter the slots 412 during assembly.

Next, the flow of assembling the entire filter unit 4 will be described: the filter bag 43 is placed into the filter basket 42, the ballast 44 is placed into the filter bag 43, the flange 431 is tightly fixed between the pressing plate 441 and the top of the filter basket 42, the caisson 442 is located in the filter bag 43 and occupies a large space, and then the ballast 44 together with the filter basket 42 is placed into the shell 41 and is rotatably clamped into the clamping groove 412 by the clamping tenon 445, so that all the assembly is completed. As shown in fig. 5, the assembled filter bag 43 is located between the caisson 442 and the filter basket 42, and during operation, the washing water enters the periphery of the caisson 442 through the water inlet holes 443, then passes through the filter bag 43, the meshes 421 of the filter basket 42, and then flows out of the water outlet 411 at the bottom of the housing 41.

The utility model relates to a focus has increased inlet opening 443 and caisson 442 on clamp plate 441 at filter unit 4, has several following advantages in the use:

1. the inlet 443 has a small diameter and is distributed in a ring shape, which can prevent the vortex from being generated between the water surface and the inlet 443 when the pump 5 starts pumping water. If the vortex occurs, the pump 5 sucks air and an abnormal problem occurs.

2. Caisson 442 occupies a large volume within housing 41 to reduce overall water storage and help increase replacement frequency.

Next, the second design of the water-saving device of the present invention is explained:

as shown in fig. 1 and fig. 6, in an actual use state, the cleaning apparatus may be provided with a plurality of chambers according to the process requirement, and the number of the chambers is not limited, so as to achieve the purpose of cleaning the circuit board. Referring to fig. 6, which is a schematic view of the internal structure of fig. 1 with a part of the wall removed, in this embodiment, the water saving cleaning apparatus includes three

chambers

1A, 1B and 1C, and each of the

chambers

1A, 1B and 1C still includes an

operation tank

11A, 11B and 11C and an

equipment tank

12A, 12B and 12C. The lower half spaces of the

operation slots

11A, 11B and 11C are not communicated with each other. A partition plate 14 is arranged between the equipment tank 12C and the equipment tank 12B, and an overflow port 141 is arranged on the partition plate 14; a partition plate 15 is arranged between the equipment tank 12B and the equipment tank 12A, and an overflow port 151 is arranged on the partition plate 15. In this embodiment, the facility tank 12C is provided with a water injection pipe 16, and the facility tank 12A is provided with an overflow pipe 17. Referring to fig. 1 and 6, the circuit board enters from the circuit board inlet 18 in the right side wall of the chamber 1A, is cleaned by the cleaning units 3 of the chambers, and is then discharged from the circuit board outlet 19 in the right side wall of the chamber 1C, and then is subjected to the subsequent processes.

The utility model discloses in when belt cleaning device work operation, clean washing water is constantly injected into to equipment groove 12C's water injection pipe 16, equipment groove 12C's washing water can overflow to equipment groove 12B from overflow mouth 141, equipment groove 12B's washing water overflows to equipment groove 12A from overflow mouth 151 again, equipment groove 12A is full water level after, water can be followed overflow pipe 17 and drawn the mouth and get into and discharge, it intakes to reach groove room 1C, the steady state that groove room 1A overflow was discharged, this design is in order to make the circuit board enter into operation groove 11A and make the washing earlier for using the water that is relatively dirtieth, the circuit board enters into operation groove 11B and makes the washing for using the water that is relatively dirtieth, the circuit board enters into operation groove 11C and makes the washing for using relatively clean water, it also has water conservation effect to reach the cleaning function concurrently.

As shown in fig. 7, the cleaning unit 3 of the present invention is removed from the internal structure thereof. The utility model discloses an operation groove also has the design of water conservation structure, because

operation groove

11A, 11B and 11C structure are all the same, only explains with regard to operation groove 11A: the bottom of the operation tank 11A is composed of a sloping plate 101 and a raised bottom plate 102, wherein the raised bottom plate 102 is elevated to reduce the volume of the operation tank 11A, and the top surface of the raised bottom plate 102 is inclined at a small angle, in this embodiment, the inclined mode includes a slight downward inclination in a direction away from the equipment tank 12A and a slight downward inclination in a direction connected to the sloping plate 101, but does not affect the operation of the cleaning unit 3. The inclined plate 101 is inclined at an angle with a steep slope, the highest position is adjacent to the top surface of the raised bottom plate 102, and the lowest position corresponds to the through hole 13, so that after the cleaning unit 3 is operated, the overflowing cleaning water can flow downwards through the raised bottom plate 102 and the inclined plate 101 and flow back to the equipment tank 12A through the through hole 13, and the cleaning water can be fully used without water accumulation at other corner positions. This design also increases the frequency of replacement of the washing water in the operation tank 11A. Synthesize above description, the utility model discloses a reducible tank room's of design volume reduces and washs the water usage, and for example, current belt cleaning device's tank room minimum capacity is 35 liters, the utility model discloses then can fall to 19 liters, and the caisson design of aforementioned filter unit 4 is added again, more 3 liters of reducible usage. The actual dosage is only 16 liters. As for the filtration efficiency, the higher the replacement rate of water, the better the filtration effect, and it can be known that if the amount of washing water injected from the water injection port is 4 liters/minute, the washing water in the tank chamber is completely replaced 1 time every 8.7 minutes in the conventional method; the utility model discloses a look against the design, only need 4 minutes, the water in the cell chamber just can all replace 1 time, if the current structure is required to replace 1 time for every 4 minutes is whole, pours into clean water volume and just must reach 8.7 liters/minute, and the water consumption is more than one time. So current belt cleaning device capacity is great, the water consumption is more, the replacement frequency is lower, the utility model discloses belt cleaning device capacity is little, the water consumption is less, the replacement frequency is high, reaches the purpose of water conservation and energy saving, and the cleaning performance of lifting circuit board.

Furthermore, as shown in fig. 8, the present invention is a three-dimensional schematic view of the flowing direction of the cleaning water during operation. In the present invention, the through hole 13 is also improved, and since the structure of the

chambers

1A, 1B and 1C is the same, only the chamber 1A will be described. The operation slot 11A and the equipment slot 12A are separated by a partition plate 6, the through hole 13 is located in a partial area below the partition plate 6 and is not in the middle position, and in the embodiment, the middle partition plate 6 only refers to the area where the operation slot 11A and the equipment slot 12A are connected. The design can lead the cleaning water to be matched with the inclined plate 101 to guide to generate water flow with higher flow speed, lead the cleaning water to enter the equipment groove 12A from the through hole 13 to generate an annular flow state 7, lead the relatively clean cleaning water flowing down from the overflow port 151 of the front groove to be mixed with the relatively dirty cleaning water from the bottom of the operation groove 11A and then enter the filtering unit 4 for filtering under the action of the pump 5, and provide the relatively clean cleaning water after filtering to be output to the cleaning unit 3; in addition, the annular flow regime 7 also contributes to the smooth discharge of the dirty wash water through the overflow pipe 17. Therefore, the cleanness of the cleaning water can be ensured under the condition of high replacement rate.

Fig. 9 is a schematic diagram showing the water level change after the pump 5 of the present invention is operated. In the initial state, the water level drops from the water level line a to the water level line B, which is a phenomenon that an alarm is easily erroneously issued in the conventional structure. The reason for this is that the cleaning unit 3 of this embodiment is a soaking and cleaning mechanism, the full water level in the tank chamber 1A is the water level line a, when the cleaning unit is initially operated, the cleaning water is pumped from the equipment tank 12 to the soaking tank of the cleaning unit 3 in the operation tank 11 through the pump 5, the structure in the soaking tank is to collect the water in the soaking tank and spray the water onto the circuit board by the spray pipe or the water knife for cleaning, when the water level reaches the set value, the cleaning water overflows from both sides, and the overflowing cleaning water falls to the bottom of the operation tank 11A and flows back to the equipment tank 12A. In the initial state, the cleaning water is not available, the water level line is quickly lowered to the position of the water level line B, but the water level is also raised to the water level A along with the continuous supply of the cleaning water by the water injection pipe, but a few seconds are still needed in the process, the existing structure always gives an alarm when the water level reaches the water level line B, so that the machine is stopped, the operation is required to be eliminated, and the false alarm increases the operation trouble.

The utility model discloses a security in the use and avoid the emergence of false alarm, because the utility model discloses be equipped with the design of bed hedgehopping bottom plate 102 and swash plate 101 in the operation groove 11A, equipment groove 12A bottom surface position is less than bed hedgehopping bottom plate 102 top surface position, fall to operation groove 11A bottom from cleaning unit 3 when wasing water, will wash the inclined plane that water converges swash plate 101 via the inclined plane of bed hedgehopping bottom plate 102, flow back to equipment groove 12A from through-hole 13 again, consequently when the water level is reduced to low water line B by initial running state because of the aforesaid, can flow back fast because of wasing water and promote the water level line, so can not produce the alarm immediately, unless the water level lasts the decline, consequently this kind of false alarm problem can be solved in this design.

It is above to synthesize, the utility model discloses water-saving cleaning device utilizes in the caisson structure in the filter unit, reduces the use amount of wasing water, deuterogamies the volume that reduces the cell chamber, reduces the use amount in step, so multiplicable replacement frequency who washs water promotes the washing water cleanliness factor in the cell chamber, does benefit to and washs the circuit board.

The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims

1. A water-saving cleaning device is characterized by comprising at least one tank chamber, wherein each tank chamber comprises an operation tank and an equipment tank, the two tank chambers are independent from each other and are provided with communicated through holes, a filtering unit is arranged in the equipment tank, a cleaning unit is arranged in the operation tank, a pump is provided with a water inlet pipe connected to the filtering unit, a water outlet pipe is connected to the cleaning unit, so that cleaning water in the equipment tank is pumped out and sent to a cleaning circuit board in the operation tank, the filtering unit is sequentially provided with a shell, a filtering basket, a filtering bag and a ballast from the periphery to the center, the ballast is composed of a pressing plate and a hollow caisson facing downwards, the pressing plate is provided with a plurality of water inlet holes, the water inlet holes are distributed in the peripheral area where the caisson is combined with the pressing plate, the filtering bag is positioned between the caisson and the filtering basket after assembly, the cleaning water enters the periphery of the caisson through the water inlet holes, then the water flows out from a water outlet at the bottom of the shell through the filter bag and the filter basket.

2. The water-saving washing device as claimed in claim 1, wherein the housing has two opposite slots at the top, and the pressing plate top also has two protruding slots, the two slots can be rotatably inserted into the slots to fix the housing and the ballast.

3. The water-saving washing device as claimed in claim 1, wherein the cross-sectional area of the water inlet hole is not more than 2 square centimeters.

4. The water-saving washing device as claimed in claim 1, wherein the bottom of the operation tank is composed of a sloping plate and a raised bottom plate, the raised bottom plate is arranged in an elevated manner without affecting the operation of the washing unit, the sloping plate is inclined at an angle and is located on one side of the raised bottom plate, the highest position of the sloping plate is adjacent to the top surface of the raised bottom plate, and the lowest position of the sloping plate corresponds to the through hole.

5. The water saving cleaning device according to claim 4, wherein the raised floor top surface is inclined downwardly away from the facility trough.

6. The water-saving washing device as claimed in claim 4, wherein the raised floor has a top surface inclined downward toward the direction of the inclined plate.

7. The water-saving washing device as claimed in claim 1, wherein the equipment tank and the operation tank are separated by a partition plate, and the through hole is located in a partial area below the partition plate and is not in a middle position.

8. The water-saving cleaning device is characterized by comprising at least one tank chamber, each tank chamber comprises an operating tank and an equipment tank, the operation groove and the equipment groove are separated by a partition plate, so that the two groove spaces are independent from each other and are provided with communicated through holes, the equipment tank is internally provided with a filtering unit, the operating tank is provided with a cleaning unit, a pump is provided with a water inlet pipe connected with the filtering unit and a water outlet pipe connected with the cleaning unit, the cleaning water in the equipment tank is pumped out by the pump and then is sent to the operation tank to clean the circuit board, the bottom of the operation groove is composed of a sloping plate and a raising bottom plate, the sloping plate is inclined at an angle and is positioned at one side of the raising bottom plate, the inclined plate is located at the highest position close to the top surface of the elevating bottom plate, the lowest position corresponds to the through hole, and the through hole is located in a local area below the partition plate and is not located in the middle.

9. The water saving cleaning device according to claim 8, wherein the raised floor top surface is inclined downwardly away from the utility trough.

10. The water saving washing apparatus as claimed in claim 8, wherein the raised floor has a top surface inclined downwardly toward the direction of the inclination.

11. The water-saving washing device of claim 8, wherein the filter unit comprises a housing, a filter basket, a filter bag and a ballast from the periphery to the center, the ballast comprises a pressure plate and a downward caisson, the pressure plate has a plurality of water inlets, the water inlets are distributed in the peripheral region where the caisson is combined with the pressure plate, the filter bag is located between the caisson and the filter basket after assembly, the wash water enters the periphery of the caisson through the water inlets, and then flows out from the bottom water outlet of the housing through the filter bag and the filter basket.